/**
 * Copyright 2011 Joao Miguel Pereira
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package eu.jpereira.trainings.designpatterns.structural.composite.model;
 
import java.util.ArrayList;
import java.util.List;
 
 
/**
 * @author Joao Pereira
 *
 */
public abstract class CompositeShape extends Shape {
 
        List<Shape> shapes;
 
        public CompositeShape() {
                this.shapes = createShapesList();
               
        }
 
        /**
         * Remove a shape from this shape childrens
         *
         * @param shape
         *            the shape to remove
         * @return true if the shape was present and was removed, false if the shape
         *         was not present
         */
        public boolean removeShape(Shape shape) {
                for(int i=0;i<shapes.size();i++)
                {
                       
                        if(shapes.get(i).equals(shape))
                                        {
                                       
                                         shapes.remove(i);
                                         return true;
                                        }
                }
                return false;
 
        }
 
        /**
         * Return the total shapes count in case this is a composite
         *
         * @return the total count of shapes if the shape is composite. -1 otherwise
         */
        public int getShapeCount() {
               
                return shapes.size();
 
        }
 
        /**
         * Add a shape to this shape.
         *
         * @param shape
         *            The shape to add
         * @throws ShapeDoesNotSupportChildren
         *             if this shape is not a composite
         */
        public void addShape(Shape shape) {    
                shapes.add(shape);     
        }
 
        public List<Shape> getShapes() {
        /*      for(int i=0;i<shapes.size();i++)
                {
                        shapes.get(i).move(this.getX(),this.getY());
                }*/
                return shapes;
 
        }
 
        /**
         * @param circle
         * @return
         */
        public List<Shape> getShapesByType(ShapeType circle) {
                List<Shape> shapess= new ArrayList<Shape>();
                int i=0;
                while(i<shapes.size())
                {                      
                        if(shapes.get(i).getType().equals(circle))
                        {                                      
                                shapess.add(shapes.get(i));
                               
                        }                      
                        i++;
                }
               
               
                        return shapess;
        }
 
        /**
         * Return all shapes that are leafs in the tree
         *
         * @return
         */
        public List<Shape> getLeafShapes() {
               
                List<Shape> leafs = new ArrayList<Shape>();
        for (int i=0; i<shapes.size(); i++)
        {
                if (shapes.get(i).asComposite()==null) leafs.add(shapes.get(i));
        }
        return leafs;
        }
 
        /**
         * Factory method for the list of children of this shape
         *
         * @return
         */
        protected List<Shape> createShapesList() {
                return new ArrayList<Shape>();
               
        }
}